* tls: Refactor TLS config innards with a few minor syntax changes

muststaple -> must_staple
"http2 off" -> "alpn" with list of ALPN values

* Fix typo

* Fix QUIC handler

* Inline struct field assignments

Revert removed method IncrNest

* Disable TLS completely if there is no listener with tls enabled

* Format code

* Revised fileserver Accept-Encoding and ETag

* calculateEtag improved following microbenchmarking

* Push down headers from client

* Push first, serve later

* After review fixes

* Remove manual TLS clone method

* WiP tls

* Use GetClientConfig for tls.Config

* gofmt -s -w

* GetConfig

* Handshake

* Removed comment

* Disable HTTP2 on demand

* Remove junk

* Remove http2 enable (no-op)

* Store name of authenticated user in basicauth for use by upstream middleware such as fastcgi and cgi.

* Use request context to transfer name of authorized user from basicauth to upstream middleware. Test retrieval of name from context.

* Remove development code that was inadvertently left in place

* Use keys of type httpserver.CtxKey to access Context values

* WIP: Implement HTTPS interception detection by Durumeric, et. al.

Special thanks to @FiloSottile for guidance with the custom listener.

* Add {{.IsMITM}} context action and {mitm} placeholder

* Improve MITM detection heuristics for Firefox and Edge

* Add tests for MITM detection heuristics

* Improve Safari heuristics for interception detection

* Read ClientHello during first Read() instead of during Accept()

As far as I can tell, reading the ClientHello during Accept() prevents
new connections from being accepted during the read. Since Read() should
be called in its own goroutine, this keeps Accept() non-blocking.

* Clean up MITM detection handler; make possible to close connection

* Use standard lib cipher suite values when possible

* Improve Edge heuristics and test cases

* Refactor MITM checking logic; add some debug statements for now

* Fix bug in MITM heuristic tests and actual heuristic code

* Fix gofmt

* Remove debug statements; preparing for merge

* WIP

* HTTP2/Push for golang 1.8

* Push plugin completed for review

* Correct build tag

* Move push plugin position

* Add build tags to tests

* Gofmt that code

* Add header/method validations

* Load push plugin

* Fixes for wrapping writers

* Push after delivering file

* Fixes, review changes

* Remove build tags, support new syntax

* Fix spelling

* gofmt -s -w .

* Gogland time

* Add interface guards

* gofmt

* After review fixes

proxy: handle encoded path in URL

fix issue #1362
Signed-off-by: Tw <tw19881113@gmail.com>

* Implement curve X25519

* caddytls: Added a default curves list

* caddytls: Improve tests

Replace our old faithful gracefulListener with Go 1.8's Shutdown()

Set Go 1.8's ReadHeaderTimeout and IdleTimeout

Set session ticket keys properly (fixed in Go 1.8)

* fixing panic when root is symlink
checking root path is a symlink before os.Stat which panics

* fixing formatting

* adding test to verify symlink root path check

* fixing typo

* Add request placeholder support for querying request cookies.

This adds the ability to query the request cookies for placeholders
using the syntax "@cookiename".

For example, this would allow rewriting based on a cookie:
  rewrite {
    if @version is 'dev'
    to /dev/index.html
  }

* Switch cookie special char from @ to :

* Switch special char for cookies from : to ~

return 404 for "not a directory" errors

redirect: determine the FromScheme at runtime (#1297)

* Fix data race for max connection limiting in proxy directive.

The Conns and Unhealthy fields are updated concurrently across all active
requests.  Because of this, they must use atomic operations for reads and
writes.

Prior to this change, Conns was incremented atomically, but read unsafely.
Unhealthly was updated & read unsafely.  The new test
TestReverseProxyMaxConnLimit exposes this race when run with -race.

Switching to atomic operations makes the race detector happy.

* oops, remove leftover dead code.

Added Sourcegraph badge to README

httpserver: Register cgi plugin

Fix for #1388 starting with no Caddyfile

* Use new subdirectives and flatten rolling config

* Set default rotate config

* Set default rolling config (hopefully) errwhere

* Make private

* Flatten errors directive and remove c.IncrNest()

* Don't skip first error log roller subdirective we see

* Remove hadBlock

* Try lumberjack import

* Unname import

* Remote syslog

* golint

* Initialize mutex

Replace magic number 308 with http.StatusPermanentRedirect

Create only one log roller per file across whole process (fixes #1363)